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In the U.S., the numbers of rats and mice used are not reported, but estimates range from around 11 million [4] to approximately 100 million. [5] In 2000, the Federal Research Division, Library of Congress, published the results of an analysis of its Rats/Mice/and Birds Database: Researchers, Breeders, Transporters, and Exhibitors.
Laboratory rats or lab rats are strains of the rat subspecies Rattus norvegicus domestica (Domestic Norwegian rat) which are bred and kept for scientific research. While less commonly used for research than laboratory mice , rats have served as an important animal model for research in psychology and biomedical science [ 1 ] , and "lab rat" is ...
The terms animal testing, animal experimentation, animal research, in vivo testing, and vivisection have similar denotations but different connotations.Literally, "vivisection" means "live sectioning" of an animal, and historically referred only to experiments that involved the dissection of live animals.
Scientists have some good news for rats and some bad news for city dwellers. Rat populations are rising in cities including Washington, D.C., and San Francisco, reports a study released Friday ...
As mice and rats have life spans of at most 5 years the “studies on these rodents in space have the potential to extrapolate important implications for humans living in space well beyond six months." [1] [2] The Rodent Research Hardware System was developed by scientists and engineers at NASA's Ames Research Center in Moffett Field ...
A working rat is any rat which is trained for specific tasks as a working animal. In many cases, working rats are domesticated brown rats . However, other species, notably the Gambian pouched rat , have also been trained to assist humans.
Technical reports are often prepared for sponsors of research projects. Another case where a technical report may be produced is when more information is produced for an academic paper than is acceptable or feasible to publish in a peer-reviewed publication; examples of this include in-depth experimental details, additional results, or the ...
In the 1940s, influenced by the studies of his former professor Edward C. Tolman, Tryon decided to test the theory that intelligence is an inherited trait. [2] To do this, he tested the ability of laboratory rats to navigate a maze: rats who took fewer wrong turns to get through the maze and reach the food at the end were termed "maze-bright", while those who took many wrong turns were termed ...